This is a note to let you know that I've just added the patch titled
btrfs: mark compressed range uptodate only if all bio succeed
to the 5.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-mark-compressed-range-uptodate-only-if-all-bio-succeed.patch
and it can be found in the queue-5.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 240246f6b913b0c23733cfd2def1d283f8cc9bbe Mon Sep 17 00:00:00 2001
From: Goldwyn Rodrigues <rgoldwyn@xxxxxxx>
Date: Fri, 9 Jul 2021 11:29:22 -0500
Subject: btrfs: mark compressed range uptodate only if all bio succeed
From: Goldwyn Rodrigues <rgoldwyn@xxxxxxx>
commit 240246f6b913b0c23733cfd2def1d283f8cc9bbe upstream.
In compression write endio sequence, the range which the compressed_bio
writes is marked as uptodate if the last bio of the compressed (sub)bios
is completed successfully. There could be previous bio which may
have failed which is recorded in cb->errors.
Set the writeback range as uptodate only if cb->errors is zero, as opposed
to checking only the last bio's status.
Backporting notes: in all versions up to 4.4 the last argument is always
replaced by "!cb->errors".
CC: stable@xxxxxxxxxxxxxxx # 4.4+
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/compression.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -353,7 +353,7 @@ static void end_compressed_bio_write(str
btrfs_record_physical_zoned(inode, cb->start, bio);
btrfs_writepage_endio_finish_ordered(cb->compressed_pages[0],
cb->start, cb->start + cb->len - 1,
- bio->bi_status == BLK_STS_OK);
+ !cb->errors);
cb->compressed_pages[0]->mapping = NULL;
end_compressed_writeback(inode, cb);
Patches currently in stable-queue which might be from rgoldwyn@xxxxxxx are
queue-5.13/btrfs-mark-compressed-range-uptodate-only-if-all-bio-succeed.patch
